Model–based Labelling of Regional fMRI Activations from Multiple Subjects
نویسندگان
چکیده
We propose a novel concept for comparing fMRI activations of brain regions of interest (ROI) across subjects. Each individual activation pattern is compared with a group activation model, rather than comparing the activations directly, e.g. on a voxel–level basis. Meaningful mappings of functional activations are based on correspondences in the respective modal eigenspaces. First results on auditory activations indicate an improvement to the classical ROI methodology as for the first time several sources of activation variance are considered.
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